Patch "ANDROID: binder: fix proc->tsk check." has been added to the 4.12-stable tree

This is a note to let you know that I've just added the patch titled

    ANDROID: binder: fix proc->tsk check.

to the 4.12-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
android-binder-fix-proc-tsk-check.patch
and it can be found in the queue-4.12 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Martijn Coenen <[email protected]>
Date: Fri, 28 Jul 2017 13:56:08 +0200
Subject: ANDROID: binder: fix proc->tsk check.

From: Martijn Coenen <[email protected]>

commit b2a6d1b999a4c13e5997bb864694e77172d45250 upstream.

Commit c4ea41ba195d ("binder: use group leader instead of open thread")' was incomplete and didn't update a check in binder_mmap(), causing all mmap() calls into the binder driver to fail.

---
 drivers/android/binder.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

@@ -3362,7 +3362,7 @@ static int binder_mmap(struct file *filp
 	const char *failure_string;
 	struct binder_buffer *buffer;
 
-	if (proc->tsk != current)
+	if (proc->tsk != current->group_leader)
 		return -EINVAL;
 
 	if ((vma->vm_end - vma->vm_start) > SZ_4M)

Patches currently in stable-queue which might be from [email protected] are

queue-4.12/android-binder-fix-proc-tsk-check.patch